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authorDaniel Stenberg <daniel@haxx.se>2016-10-11 11:04:06 +0200
committerDaniel Stenberg <daniel@haxx.se>2016-10-11 11:05:06 +0200
commit9297ca49f5f3caca938a679b9c1feeb719e61ddb (patch)
tree8b16b1114711effa1d47f13e1df291cb52341d2c
parent358fd32820357c444c12386548872430be01549d (diff)
configure: detect the broken poll() in macOS 10.12
Fixes #1057
-rw-r--r--m4/curl-functions.m422
1 files changed, 19 insertions, 3 deletions
diff --git a/m4/curl-functions.m4 b/m4/curl-functions.m4
index ee7a2521c..e1a1e32b3 100644
--- a/m4/curl-functions.m4
+++ b/m4/curl-functions.m4
@@ -5,7 +5,7 @@
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
-# Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
+# Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
@@ -4803,11 +4803,27 @@ AC_DEFUN([CURL_CHECK_FUNC_POLL], [
AC_LANG_PROGRAM([[
$curl_includes_stdlib
$curl_includes_poll
+ $curl_includes_time
]],[[
+ /* detect the original poll() breakage */
if(0 != poll(0, 0, 10))
exit(1); /* fail */
- else
- exit(0);
+ else {
+ /* detect the 10.12 poll() breakage */
+ struct timeval before, after;
+ int rc;
+ size_t us;
+
+ gettimeofday(&before, NULL);
+ rc = poll(NULL, 0, 500);
+ gettimeofday(&after, NULL);
+
+ us = (after.tv_sec - before.tv_sec) * 1000000 +
+ (after.tv_usec - before.tv_usec);
+
+ if(us < 400000)
+ exit(1);
+ }
]])
],[
AC_MSG_RESULT([yes])